Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

106results about How to "Easy to write" patented technology

Judicial field semantic abstracting method, system and equipment based on large model and storage medium

The invention discloses a judicial field semantic abstracting method, system and device based on a large model and a storage medium. The method comprises the steps that voice recognition is conducted on a court trial video, voice is converted into a court trial text, the court trial text is labeled, and a labeled text set is obtained to serve as a training set; training the large model by using the labeled text set, and finely adjusting the large model after each round of training; performing voice recognition on the actual court trial video, converting the voice into an actual court trial text, and extracting a timestamp; utilizing the trained large model to identify the court hearing process of the actual court hearing text, and reasoning a court hearing process text; matching the reasoned court hearing process text to timestamps by using a matching algorithm, and generating video anchor points when the timestamps at the starting positions of all the processes in the court hearing process text correspond to the anchor points of the processes of the court hearing video; abstracting the reasoned court hearing process text; and combining the abstract text with the video anchor points to generate structured court hearing information. According to the invention, the court trial video processing efficiency is improved.
Owner:JIANGSU XINSHIYUN TECH CO LTD

Interactive teaching method based on scene environment

The invention relates to the technical field of interactive teaching methods, and discloses an interactive teaching method based on a scene environment, and the method comprises the following steps: S1, inputting a standard font by a teacher; s2, a student writes fonts through a remote device, and uploads the written fonts to the calligraphy teaching system; and S3, the calligraphy teaching system carries out digital processing on fonts written by students so as to realize dynamic adjustment of teaching contents through a scene analysis module in combination with intelligent error correction and a personalized training plan, and the calligraphy teaching effect and efficiency are improved. According to the method, not only can the writing problems of the students be accurately identified, but also personalized improvement suggestions and training plans can be provided according to the specific conditions of the students, and the students are helped to better master the calligraphy skill.
Owner:HANGZHOU LIANGDIAN CULTURE TECH CO LTD

Retransmission cache structure based on UCIE

The invention discloses a retransmission cache structure based on UCIE, and relates to the technical field of data caching. Comprising a data receiving module, a mapping module, a pointer management module, a direct writing buffer module and a data transmission and storage module, an efficient retransmission cache structure is achieved through the UCIE adaptation layer, transmission and storage of data Flit of 68B and 256B different sizes are compatible, delay of a storage matrix is effectively reduced through the introduced buffer write-through function, read delay is reduced, the data transmission efficiency is improved, meanwhile, the resource utilization rate is improved through the structure, and the data transmission efficiency is improved. The problems that a traditional cache structure is not specific, resource utilization is insufficient and data transmission is delayed are solved. By means of the data receiving module and the token bucket algorithm, data flow is controlled, network congestion is avoided, and it is ensured that the transmission rate of data packets is reasonable.
Owner:ZHONGYIN MICROELECTRONICS NANJING CO LTD

Multi-diameter-at-breast extraction method and device for tree with branches, electronic equipment and medium

The invention provides a multi-diameter-at-breast-height extraction method and device for a tree with branches, electronic equipment and a medium, and the method comprises the steps: constructing an octree based on a single tree segmentation result, carrying out the clustering analysis through the octree, and extracting point cloud clusters of a trunk and the branches; and then multilayer slicing and circle fitting are carried out based on the obtained point cloud cluster, effectiveness evaluation of a fitting circle is carried out, and finally the diameter at breast height of the trunk and the branches is determined based on an evaluation result. According to the method, tree branches are fully considered, the adaptive octree is adopted for processing, an effective result can be obtained without setting parameters, the scheme for extracting the trunk and the branches has a certain denoising capability, and the accuracy of extracting the diameters at breast height is improved while multi-diameter extraction of the trunk and the branches is realized. Meanwhile, according to the scheme, multi-layer slicing is carried out on effective point clouds of all clusters, circle fitting is carried out on all slices, and fitting result evaluation is carried out by using an effectiveness evaluation index, so that the precision of a diameter at breast height result is further improved.
Owner:BEIJING GREEN VALLEY TECH CO LTD +2

Sound insulation and noise reduction partition wall

The utility model discloses a sound insulation and noise reduction partition wall which comprises a wall body, a sound insulation and noise reduction layer is arranged in the side wall of the wall body, a desk plate containing groove is formed in the side wall of the wall body, a desk plate is rotationally connected to the side wall of the desk plate containing groove through a rotating shaft, and a handle is fixedly connected to the side wall of the desk plate. A baffle is fixedly connected to the top of the desk plate storage groove, the side wall of the desk plate abuts against the side wall of the baffle, a seat plate storage groove is formed in the side wall of the wall body, a seat plate is rotationally connected to the side wall of the seat plate storage groove through a rotating shaft, and a supporting plate is rotationally connected to the side wall of the seat plate through a rotating shaft. Under the mutual cooperation of the limiting plate, the desk plate, the seat plate, the hook and other components, the storage type desk plate and the storage type seat plate are arranged to facilitate writing or working of people, the prevention plate is arranged to be used for containing photos, dolls and other decorations, and therefore the internal space of the partition wall is utilized, and the functionality and applicability of the partition wall are improved.
Owner:SUZHOU JINJUE DECORATION ENG CO LTD

Code compiling method and device, equipment, medium and program product

The invention provides a code compiling method and device, equipment, a storage medium and a program product. The method comprises the following steps: in response to a compiling instruction for a source code file of a page of an application program component, analyzing the source code file to obtain a content file, a script file and a style file of the page; in the style file, determining a grammar sugar of an element variable of a page element in the script file, and linking the style file to the element variable of the script file through the grammar sugar; generating a style variable of the element variable, and replacing the syntax sugar with the style variable to obtain a new style file; a definition object of the element variable is obtained, the definition object is inserted into the content file to obtain a new content file, and the definition object instructs to control the style variable based on the element variable; compiling to obtain an executable file based on the new content file, the script file and the new style file; by means of the method and device, the code development and maintenance efficiency can be improved while the dynamic style effect is achieved.
Owner:TENCENT TECH (BEIJING) CO LTD

A method for overpressure protection of primary circuit water pressure test in nuclear power plant

The present invention belongs to the technical field of overpressure protection during the water pressure test of the primary circuit of a nuclear power plant, and specifically relates to a method for realizing simple and effective overpressure protection of the primary circuit water pressure test when the entire primary circuit needs a water pressure test after the overhaul of the nuclear power plant. The measurement signals of four pressure gauges are connected to the DCS signal acquisition cabinet, and the designed overpressure protection setting value is written into the DCS software. The DCS software processes and calculates the collected signals according to the overpressure protection setting value. When the measured pressure value exceeds the setting value, the pressure relief valve is opened to release the pressure or the water pressure test pump is shut down to prevent the primary circuit from overpressure; and a preliminary experiment of the water pressure test of the primary circuit is carried out. The present invention can avoid accidental pressure relief of the primary circuit due to malfunction of the protection system during overpressure or boosting of the primary circuit, which ultimately leads to water pressure failure of the entire primary circuit.
Owner:CNNC FUJIAN FUQING NUCLEAR POWER

Basketball match timer and control method thereof

The invention provides a basketball match timer and a control method thereof, and relates to the technical field of timers, the basketball match timer comprises a display screen, a controller, a remote controller and a voice broadcast module; the display screen comprises a bottom plate and a plurality of lamp strips arranged on the bottom plate, each lamp strip is provided with a positive electrode end, a negative electrode end and a data transmission end, the positive electrode ends of the lamp strips are electrically connected with the positive electrode of the power source after being connected in series, and the negative electrode ends of the lamp strips are electrically connected with the negative electrode of the power source after being connected in series. The data transmission ends of the lamp strips are connected in series and then are electrically connected with the controller through a data transmission line, and every seven lamp strips are encircled to form an 8-shaped nixie tube; the voice broadcast module is electrically connected with the controller, the remote controller is in wireless communication connection with the controller, and the controller controls the lamp strip to display competition time data according to signals received by the remote controller. Only one data transmission line is used to control the on and off of all the lamp strips, the display of the score of the whole basketball match is realized, the circuit design is simple, and the programming is convenient.
Owner:NINGBO UNIVERSITY OF TECHNOLOGY

A multimodal interactive device based on English teaching

The present invention discloses a multimodal interactive device based on English teaching, comprising a support base fixed with a plurality of support rods, each support rod having a universal wheel rotatably mounted at its lower end, a circular disc body mounted on the support base through a height adjustment mechanism, and a through hole matched with the circular disc body is provided on the support base; the circular disc body is fixedly composed of a semicircular plate 1 and a semicircular plate 2, a groove body is provided on the front side of the semicircular plate 2, and a support plate is rotatably mounted in the groove body. The advantages are: the height of the circular disc body can be adjusted as required, so that it is convenient to use during class, and it is also convenient to place or move it when it is not needed, and the height adjustment operation is simple, firstly, an upward force is applied to the plate body by hand, and then the servo motor is turned on; at the same time, the semicircular plate 1 can be quickly rotated to the top of the semicircular plate 2, so that it is convenient to use the video player, and the rotation operation is simple.
Owner:WEIHAI OCEAN VOCATIONAL COLLEGE

Drainage tube with fixator

The utility model relates to the technical field of medical equipment, and discloses a drainage tube with a fixator, which comprises a flow guide tube and further comprises a connecting piece arranged on the outer side of the flow guide tube, a connecting tube is arranged at the bottom of the connecting piece, and a fixing piece is arranged on the outer side of the connecting tube; the scale marks and the drainage holes are formed in the outer side of the flow guide pipe, and a writing piece used for recording the name and time of the pipeline is arranged on the outer side of the connecting pipe; according to the utility model, a nurse can conveniently observe whether the flow guide tube is disengaged or not by utilizing the scale marks, the writing piece is designed, so that a doctor nurse can conveniently write and conveniently observe the type and time of the flow guide tube, the fixing band is fixed on the outer side of the connecting tube, the suture hole is formed in the fixing band, and when not in use, the connecting tube and the fixing band are an integrated circular pipeline; when in use, the fixing band is opened and is sutured with the skin through the suturing holes, so that the connecting tube and the flow guide tube can be fixed outside the body of a patient.
Owner:BEIJING CHAOYANG HOSPITAL CAPITAL MEDICAL UNIVERSITY

Movable embossment structure

The invention belongs to the technical field of embossment, and particularly relates to a movable embossment structure which comprises a rack, an installation cavity is formed in the outer side of the rack, a plurality of display assemblies are installed in the installation cavity in a matrix state, and the multiple display assemblies form an embossment shape through stretching and retracting of the display assemblies. According to the movable embossment structure, a certain part in a whole image is displayed through the display screens on the display assemblies, the whole image is jointly displayed through the multiple display assemblies, when the image needs to be replaced with other patterns, only the image stored in the intelligent control module needs to be replaced, the embossment can be replaced with different patterns, the embossment patterns are easily replaced, and the replacement efficiency is improved. According to the three-dimensional embossment structure, the multiple display assemblies are arranged to adapt to the requirement changes of different occasions, the flexibility and diversity are improved, meanwhile, the replacement cost and resource consumption are reduced, sustainable development and wide application of the embossment art are promoted, the multiple display assemblies can stretch out and draw back to different degrees, and the formed embossment shape is more three-dimensional and good in decoration effect.
Owner:员雷

Method and device for automatically generating interface automation test project architecture and medium

The invention discloses a method and equipment for automatically generating an interface automatic test project architecture, and a medium. The method comprises the following steps: constructing the interface automatic test project architecture; installing a corresponding Python package according to the dependency library file; calling the public and basic files for use according to project requirements, and completing compiling of an interface test script; generating a component under the interface automation script source code file according to the added component file and the compiled interface test script; deleting the component under the interface automation script source code file according to the component deletion file and the compiled interface test case; executing an interface test process according to a complete component and function script code written under the interface automation script source code file, and obtaining interface test data; storing the interface test data into a target database according to the database file; and obtaining interface test data from the target database according to the interface automation test report file, and generating a test report. The method can unify automatic project specifications.
Owner:BEIJING NEWLAND TIMES EDUCATION TECH CO LTD

Infrared intelligent push-pull blackboard

The utility model relates to the technical field of intelligent blackboards, in particular to an infrared intelligent push-and-pull blackboard which comprises an infrared intelligent screen, at least one fixing auxiliary board and a push-and-pull auxiliary board, and a containing space used for containing an infrared signal device is arranged in front of screen glass of the infrared intelligent screen. The fixed subplate is forwards biased relative to the screen glass; the infrared intelligent push-and-pull blackboard not only has the function of an infrared intelligent screen, but also gives consideration to the writing area of the chalk, and the fixed auxiliary board is offset forwards relative to the screen glass, so that the fixed auxiliary board is arranged in front of the fixed auxiliary board and slides back and forth to cover or display the screen glass. The fall between the fixed auxiliary board and the push-pull auxiliary board can be reduced, and writing is more convenient.
Owner:JIANGSU HAORUN ELECTRONIC TECH CO LTD

Hardware log information output method and device and electronic equipment

The invention relates to the field of digital integrated circuit verification, and discloses an output method for hardware log information, which comprises the following steps: defining an MSG function of a variable parameter, or redirecting the output of a printf function; converting the obtained log information output by the hardware into ASCII code data through an MSG function or a printf function; obtaining a judgment result indicating whether the read data of the first memory address contains the mark data or not; according to a judgment result, reading the ASCII code data written in the second memory address; and converting the ASCII code data into character strings and outputting the character strings to a screen. The method solves the problems that hardware log information cannot be output and the hardware program debugging efficiency is low. The log information is output in the verification process, an engineer can debug problems in the verification process more conveniently according to the output score log information, and therefore the digital IC verification efficiency is improved.
Owner:BEIJING TONGFANG MICROELECTRONICS

Data processing method, device, equipment, medium and product based on solid state disk

The embodiments of the present invention provide a data processing method, device, equipment, medium and product based on a solid-state disk, which are applied to the field of storage technology. The method includes: receiving a system task for the solid-state disk, and when the system task is a data writing task, determining a target recovery unit in the solid-state disk corresponding to the data writing task, and determining a data category of the target data corresponding to the data writing task; determining the wear condition of the target recovery unit, and determining a target verification position from the target recovery unit according to the wear condition and the data category; and writing the verification data of the target data into the target verification position. Through the embodiments of the present invention, the optimization of the writing of verification data in the solid-state disk is achieved, and the reliability of the data in the solid-state disk is improved.
Owner:SHANDONG YUNHAI GUOCHUANG CLOUD COMPUTING EQUIP IND INNOVATION CENT CO LTD

Writing devices for myasthenia

The present invention relates to a writing device for myasthenia patients, comprising a base, an X-sliding assembly is arranged on the base, a Y-sliding assembly is slidably arranged on the X-sliding assembly; a support plate is slidably arranged on the Y-sliding assembly; a support rod is arranged on the support plate, one end of the support rod is connected to a universal movable rod, and an adapter is arranged on the universal movable rod away from one end of the support rod; a pen-holding mechanism is arranged at the lower part of the adapter. The beneficial effects are: the pen can be better supported, which is convenient for myasthenia patients to write; the myasthenia patients can better move their arms, and the arms can be better supported, and the patients can move their arms autonomously, which is conducive to autonomous writing.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV

Target for image autonomous identification, target coding method and image analysis method

The invention relates to the field of vision measurement, in particular to a target for image autonomous identification, a target coding method and an image analysis method. The target comprises a target rod, a target seat and a target lamp, one end of the target rod is adjustably installed on the target seat, and the target lamp is installed on the target rod and can display light on the front face and the rear face of the target rod. The target lamp comprises a rear scattering cover, a rear hyperboloid reflection cavity, a reflection cone, multiple lamp beads, a front hyperboloid reflection cavity and a front scattering cover, the rear hyperboloid reflection cavity and the front hyperboloid reflection cavity are in butt joint, the reflection cone is clamped and fixed in the rear hyperboloid reflection cavity and the front hyperboloid reflection cavity, the lamp beads are arranged on the front side and the rear side of the reflection cone in a scattered mode, and the front scattering cover is arranged at the front end of the front hyperboloid reflection cavity. And the rear scattering cover is arranged at the rear end of the rear hyperboloid reflection cavity. The coding device comprises a far-end host, more than one handheld terminal and more than one target coding module. And the handheld terminal is used for communicating with the remote host to perform database synchronization, communicating with the target coding module and performing addition, deletion, checking and modification on the target coding information.
Owner:CHINA RAILWAY 12TH BUREAU GROUP 7TH CORPORATION LIMITED +1

Teaching display device for teachers

The utility model discloses a teacher teaching display device, which comprises a blackboard, a baffle plate, a placing groove, an auxiliary plate, an upper end seat, a positioning recess, a positioning convex plate and a fixing component, and is characterized in that the fixing component comprises a shell, a sealing cover, an inner cavity, a sliding block and a reset spring, and the sliding block is composed of a left end sliding block and a right end baffle block; a limiting filling block is arranged on the left end wall of the right end check block, a limiting check block is arranged on the upper end wall of the right side of the inner cavity, a spacing cavity is formed between the limiting filling block and the upper end wall of the inner cavity, and a guide hole communicated with the spacing cavity is fixedly formed in the upper end of the shell. The teaching aid has the following advantages and effects: a teacher can write through the auxiliary board, so that the teaching aid is very convenient; the auxiliary plate further has the advantage of being convenient to mount and dismount.
Owner:YONGJIA SECOND VOCATIONAL SCHOOL

Three-dimensional posture corrector with wrist support

The application discloses a three-dimensional posture corrector with wrist protection function, and belongs to the technical field of sitting posture correction. The three-dimensional posture corrector with wrist protection function comprises a writing board and a supporting piece. The writing board has an upwardly inclined writing surface. The supporting piece is arranged on the lower end surface of the writing board, the upper end surface of the supporting piece abuts against the writing board, and the lower end surface of the supporting piece is horizontally arranged. One end of the writing board is upwardly and obliquely extended, the other end of the writing board extends along a first direction and a second direction, and a transition surface is formed in the first direction and the second direction. The writing board comprises a supporting structure formed by the extension of the transition surface, and at least part of the lower end surface of the supporting structure is located on the same horizontal plane as the lower end surface of the supporting piece. The supporting structure is formed by the outward extension of the transition surface, and can be used for placing the wrist and / or the elbow, so as to improve the situation that the wrist or the elbow is suspended or pressed against the side edge of the writing board, improve the use comfort of the writing board, and improve the posture correction effect.
Owner:WUHAN CAMBRIDGE TREE TRADING CO LTD

Data collection device

The invention relates to a data collection device, and the device comprises a first frame body which is arranged in a flat shape, and the flat side of the first frame body is provided with a bearing surface which is used for flatly laying paper; the second frame body is arranged in a frame shape, and a first window is formed in the middle of the second frame body to expose paper for writing; the third frame body can be movably arranged in the first window of the second frame body in the first writing direction, the third frame body is provided with a second window, the paper is exposed for writing, and the second window extends in the second writing direction. According to the data collection device provided by the embodiment of the invention, the third frame body can move in the first window on the second frame body, the third frame body is provided with the second window, a related person can write and record on paper through the second window by using a pen, and under the isolation effect of the third frame body, the data collection efficiency is improved. The hand of a writing person can be prevented from being in direct contact with paper, the writing person is effectively prevented from contaminating the paper, data recording is clearer, and subsequent data reading and recognition are facilitated.
Owner:JILIN TOBACCO IND CO LTD

Electromagnetic handwriting system and handwriting deleting method thereof

The invention discloses an electromagnetic handwriting system and a handwriting deleting method thereof, and belongs to the technical field of electromagnetic handwriting systems.The electromagnetic handwriting system comprises a two-color electromagnetic induction pen, a handwriting receiving board, a central processing unit, an image preprocessing unit, a curve input unit, a region filling and deleting unit and a displayer; the two-color electromagnetic induction pen is in communication connection with the handwriting receiving board, the handwriting receiving board is in communication connection with the central processing unit, the central processing unit is in communication connection with the image preprocessing unit, the area filling and deleting unit and the displayer, and the curve input unit is in communication connection with the image preprocessing unit and the area filling and deleting unit. By means of the mode, the function of deleting the handwriting directly through the writing operation is achieved, and the writing efficiency is improved.
Owner:NANJING DUOWEIXINLIAN TECH

Pharmacy multi-functional medicine shelf partition

The utility model discloses a pharmacy multifunctional medicine shelf partition relates to pharmacy equipment field, including fixed axle, soft partition and accomodation axle, and fixed axle fixed connection is in soft partition one side, and the other side fixed connection of soft partition is in accomodation axle inside, and soft partition is magnetic material, and whole can be bent, and fixed axle includes axle body main part, first sucking disc, second sucking disc and third sucking disc, and first sucking disc and second sucking disc fixed connection are in axle body main part outside, and third sucking disc fixed connection is in axle body main part bottom end, the utility model provides a pharmacy multifunctional medicine shelf partition, and the soft partition of the device is the writing board with magnetism, can be convenient for pharmacist to write medicine expiration date and other related information on it, and is designed as erasable, and the fixed axle and accomodation axle of the device can utilize built -in sucking disc structure and be adsorbed and fixed in the arbitrary place of medicine shelf, and can be moved at will according to demand simultaneously, and can accomodate and save space at any time when not using.
Owner:广州市胸科医院

Notebook capable of being held by hand conveniently to record study activities

The utility model discloses a notebook convenient to hold and record study activities, which belongs to the field of notebook and comprises a support frame, paper is movably mounted in the support frame, connecting rings are movably mounted on two sides of the support frame and fixedly mounted with a connecting frame, and a handle plate is fixedly mounted in the middle of the connecting frame. A movable pipe is fixedly installed in the middle of the handle plate, a fixing rod is movably installed in the movable pipe, the connecting frame is rotated towards the side face, the handle plate is moved to one side of the supporting frame, the fixing rod is inserted into the fixing hole, the connecting frame and the supporting frame are connected into a whole, and the supporting frame is convenient to hold by hand through the handle plate structure; the supporting frame is of a hard plastic structure, so that during writing, the pen point is supported by the supporting frame, writing is convenient, handwriting is not prone to deformation, the movable plate can move up and down conveniently, paper is convenient to disassemble and assemble, the paper is convenient to tidy, students can tidy the paper recorded in study activities conveniently when the students are idle, and use is more convenient.
Owner:山西弘茂技术服务有限公司

Pen wielding resistance exerciser

The invention relates to the technical field of pen wielding auxiliary tools, in particular to a pen wielding resistance trainer. The device comprises a positioning plate and a fixing cylinder assembled above the positioning plate, and an anti-resistance mechanism is assembled on the inner side of the fixing cylinder. Through the structural design of the anti-resistance mechanism and the direction adjusting mechanism, the direction can be changed, anti-resistance training can be conducted on strokes in different directions, autonomous power generation and explosive power of hands can be exercised, a practicer can form muscle memory for power generation in each direction and master stroke power generation skills, the purpose of fast and good writing is achieved, and the practical value of the practicer is improved. Through the structural design of an auxiliary limiting mechanism, the device can adjust the direction of a fixed cylinder, so that a main arrow on the fixed cylinder can correspond to a first direction indicating arrow, a user can conveniently carry out decomposition resistance exercise on horizontal, vertical, left-falling and right-falling point lifting hooks, and meanwhile, the device is small and flexible in size and convenient to use. And the pen wielding force of the hand can be exercised through multi-direction and multi-angle adjustment, so that the writing becomes easier.
Owner:张洪涛

Hardware cryptographic module based on domestic commercial cryptographic algorithm and implementation method thereof

The invention discloses a hardware cryptographic module based on a domestic commercial cryptographic algorithm and an implementation method thereof, and belongs to the field of information security passwords, the hardware cryptographic module comprises a hardware module and a software module, the hardware module comprises a central control unit, a bus interface bidirectionally connected with the central control unit, a physical security unit and a power supply, and the password security chip is bidirectionally connected with the bus interface and comprises a main control processor CPU, an encryption engine, an APB and AHB bus system, a TIMER timer module, an integrated storage unit and a Flash chip. According to the hardware cryptographic module based on the domestic commercial cryptographic algorithm and the implementation method of the hardware cryptographic module, a cryptographic engine can be efficiently integrated into a cryptographic security chip, and writing of a subsequent software driver is facilitated; and the method also has great significance for researching a secure operating system and secure communication and authentication protocols based on a security chip.
Owner:CSG POWER GENERATION CO LTD MAINT & TEST CO +1

An acceleration method of an SM4 block cipher algorithm and an instruction set processor

The application relates to an acceleration method of an SM4 block cipher algorithm and an instruction set processor, wherein the acceleration method is based on an SM4 extension instruction set, parallel pipeline and instruction level parallel technology are adopted to accelerate the implementation of the SM4 block cipher algorithm, and the SM4 block cipher algorithm includes an SM4 key expansion algorithm and an SM4 encryption and decryption algorithm; the SM4 extension instruction set adopts a RISC architecture and includes an SM4 round key generation instruction and an SM4 round function iteration instruction; the SM4 round key generation instruction adopts a plurality of SM4 round key parallel generation algorithms to accelerate the SM4 key expansion algorithm, and the SM4 round function iteration instruction adopts a plurality of round SM4 iteration parallel execution algorithms to accelerate the SM4 encryption and decryption algorithm. The instruction set processor supports the parallel pipeline execution of the SM4 round key generation instruction and the SM4 round function iteration instruction, and the delay is 9 beats. The application can greatly improve the speed of executing the SM4 block cipher algorithm and simplify a software program.
Owner:SHANGHAI HIGH-PERFORMANCE INTEGRATED CIRCUIT DESIGN CENT

Easily-erased multicolor thermosensitive pen with friction pen point

The utility model discloses an easy-to-erase multicolor thermosensitive pen with a nib. The easy-to-erase multicolor thermosensitive pen with the nib comprises a pen tube, a pen holder, a pen cap and a pen cap, the pen point tube is connected to the pen tube, and the pen point tube comprises a mounting tube part and a conical tube part; the eraser sleeve easy to rub is detachably arranged on the pen point tube in a sleeving mode, the eraser sleeve easy to rub comprises a first sleeving part and a second taper sleeve part which are integrally connected, the first sleeving part is arranged on the installation tube part in a sleeving mode, and the second taper sleeve part is arranged on the taper tube part in a sleeving mode so that the eraser can be wiped through the first sleeving part or the second taper sleeve part; and a connecting structure is arranged between the first sleeving part and the mounting tube part, so that the easy-to-rub eraser sleeve is fixed on the pen point tube. The problems that an existing thermosensitive pen and an eraser easy to erase are separated, so that a user cannot erase error traces rapidly when writing errors occur, the eraser easy to erase is prone to being lost, and follow-up erasing operation is affected are solved.
Owner:叶卫东